Refrigeration



R. L. HALLOCK REFRIGERATION May 1o, 1949.

Original Filed Dec. 4, 1957 VENTORJ man da# 4L'. ATTORNEY Reissued May10, 1949 REFRIGERATION Robert Lay Hallock, Larchmont, N. Y.

YOriginal No. 2,215,324, dated September 17, 1940,

Serial No. 178,060, December 4, 1937. Application for reissue September6, 1941, Serial No.

5 Claims.

My invention relates to grids for ice trays, and the nature of myinvention will be apparent from `the following description andparticularly the accompanying drawing, wherein:

" Fig. 1 is a top view of a tray and'grid embodying the invention;

Fig. 2 is taken on the line 2-2 in Fig. 1;

Fig. 3 is taken on the line 3-3 in Fig. 1;

Fig. 4 shows a detail; and

Figs. 5 and 6 show an alternative form.

The grid sets ina pan I which is of usual form and made of metal, andwhich is adapted to rest on the shelf ofan evaporator in a refrigerator.The grid includes a longitudinal member II extending the full length ofthe tray longitudinally thereof. Member II is stiff and is made of achannel bar. It may be of brass, steel, or other metal. The forward endof this bar II projects downwardly at I2 through an aperture I3 in thefront wall of the plate. The lower end is closed at I4 to provide anabutment which can be engaged by a turnable member I5. Member I ismounted to turn on a horizontal axis by means of a handle I6. If thehandle I6 is turned in one direction the member I5 projects downwardlybelow the bottom of the tray to release the tray from its supportingsurface, while on turning the handle I6 in the opposite direction themember I5 contacts the closed end I4 of the part I2 of channel II toraise the channel I I and consequently the grid from the tray to releasethe frozen contents of the tray from the tray. Generally the device isused to freeze water to form ice cubes. On turning the handle I6 so thatthe bar II is lifted the ice cubes remain attached to the grid and thegrid and ice cubes are removed from the tray as a unit. l

Mounted on the bar I I is a series of transverse webs I8. These webs mayextend continuously from side to side as shown in Fig. 6, or the sameeffect may be had by utilizingvthe continuity of structure of the bar II as by soldering or welding these members to the bar I I.

Depending downwardly from the bar I I and extending within 'its insidespace is a U-shaped strip I3 which is also made of metal like the otherparts and which may be welded or soldered to the bar II and also weldedat its ends so that it is hermetically sealed.

The webs are connected by means of threaded bars which are held by meansof nuts 2| to each of the webs. These pass through holes 22 in the webs.There is one on each side. These members 20 are stiff and tie the wingsor webs together. Arms 23 have loops which are placed heat. It will beseen that turning the handle 23 moves the webs in unison.

It will be seen that I have provided a unitary metallic grid structurefor disposition in a freezing tray and removability therefrom as a unit.The grid structure comprises a longitudinal wall member which is made upof bar IIV and the members I9 or I9a. In the form shown in Fig. 6 thelongitudinal wall I9a need not be connected to the member II but may beconnected to the Webs. The parts hold themselves together due tothesoldering or welding. The transverse wall members need be moved onlyslightly and therefore need be only somewhat'exible.

lwhat I claim is:

1. The combination with a freezing tray, of a unitary metallic gridstructure for disposition in said tray and removable therefrom as a unitcomprising a longitudinal member, a plurality of bendable webs connectedtherewith, a plurality of arms pivotally connected to said longitudinalmember, andvmeans whereby movement of said arms causes a bending of saidbendable webs to free ice cubes therefrom.

2. The combination with a freezing tray, of a unitary metallic gridstructure for disposition in said tray and removable therefrom as a unitcomprising a longitudinal member extending substantially the full lengthof the tray, a plurality .of distortable webs connected therewith, eachin part movable with respect to the longitudinal.

member, a plurality of arms pivotally mounted on said longitudinalmember, and means whereby movement of said arms causes forcemultiplication to distort said webs.

3. The combination with a freezing tray, of a unitary grid structure fordisposition in said tray and removable therefrom as a unit comprising alongitudinal member, a plurality of bendable webs connected therewith, aplurality of arms pivotally connected to said longitudinal member, andmeans whereby movement of said arms causes a bending of said bendablewebs to free ice cubes therefrom.

4. The combination with a freezing tray, of a unitary grid structure fordisposition in said tray and removable therefrom as a unit comprising alongitudinal `member extending substantially the full length of thetray, a plurality of distortable webs connected therewith, each in partmovable with respect to the longitudinal member, a. plurality of armspivotally mounted on said longitudinal member, and means wherebymovement of said arms causes force multiplication to distort Webs.

5. The combination with a freezing tray, of a distortable grid fordisposition in said tray and removable therefrom as a. unit comprising alongitudinal member and a plurality of single walled partitionsconnected to form a unitary structure, said single walled partitionsbeing embodied in said grid so that individual distortion or ilexing ofsaid partitions may be promoted, and 1 a. plurality or arms pivotallyconnected to said longitudinal member and movable to cause individualilexing and distorting of said partitions.

ROBERT LAY HALLOCK.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 2,035,543 Gaugler Mar. 31, 19362,140,923 Saler Dec. 20, 1938 2,286,080 Geyer June 9, 1942

